Soft body parts will have signficant shrinkage. This has been demonstrated conclusively with vertebrates, specifically with larval and juvenile fishes. With vertebrates, as they get larger, the signficance of this shrinkage tends to be less. I would expect similar results with inverts, except that there is actually a lot more softbody exoskeleton in most inverts than we typically consider. THere should be papers demonstrating shrinkage in invertebrates, however, I would be pretty surprised if you find much information on larviformes. My expectation is that larvae are going to have huge amounts of shrinkage.
I would expect adult coleoptera, particularly Scarabidae, Cuculionidae, Carabidae, Erotylidae, Coccinelidae, and other typical beetle forms to have minimal shrinkage Stapholyindae probably show much more as adults. Orthoptera undoubtedly shrink in body length, I would not be surprised if some shrink more than 10%. Related Mantoidea (I think it is now an Order rather than family), and other orthopteran like families will behave similarly. Odonates may shrink a ton, Hemiptera are probably variable like Coleoptera, ditto for the leafhoppers and cicadas Hymenoptera and Diptera probably shrink a bit as adults, but some families more so than others. Larvae and nymphs will probably shrink pretty bad for all groups. Crustaceans may not shrink much at all thanks to the calciferous exoskeleton, but again this will depend as something like a hermit crab sill show a lot of abdominal shrinkage. I am sure the invertebrate biologists will know a lot more about this than me. These are largely wha On Fri, Sep 16, 2016 at 2:43 PM, Jorge A. Santiago-Blay <[email protected] > wrote: > Change in linear dimensions of soft tissues in larval insect when fixed > > Dear Ecolog-Listers: > > I have nearly ca. 200 museum specimens of aquatic larval insects (1-3 cm > long) that I assume were killed by dumping them in (at the minimum) 70% > ethanol. In the only one case that the label states anything about > preservation method, it reads "KAAD --> 95%". I assume that several > changes in ethanol 70% have taken place to refill vials, as needed, in the > 48-77 years since the specimens have been dead. > > > Question: While the hard body parts will barely change in dimension with > time, does anyone know how does the softer body parts change in size? Is > there any variation in size change whether the preservation took place > early or late in the instar? > > > If you have any constructive suggestions, please email me directly at > > [email protected] > > Apologies for potential duplicate emails. > > Gratefully, > > Jorge > > Jorge A. Santiago-Blay, PhD > blaypublishers.com > > 1. Positive experiences for authors of papers published in *LEB* > http://blaypublishers.com/testimonials/ > > 2. Free examples of papers published in *LEB*: http://blaypublishers. > com/category/previous-issues/. > > 3. *Guidelines for Authors* and page charges of *LEB*: > http://blaypublishers.com/archives/ *.* > > 4. Want to subscribe to *LEB*? http://blaypublishers.com/subscriptions/ > > > http://blayjorge.wordpress.com/ > http://paleobiology.si.edu/staff/individuals/santiagoblay.cfm > -- Malcolm L. McCallum Assistant Professor of Agriculture and Natural Resources Aquaculture and Water Quality Research Scientist School of Agriculture and Applied Sciences Langston University Langston, Oklahoma Link to online CV and portfolio : https://www.visualcv.com/malcolm-mc-callum?access=18A9RYkDGxO Google Scholar citation page: https://scholar.google.com/citations?user=lOHMjvYAAAAJ&hl=en Academia.edu: https://ui-springfield.academia.edu/MalcolmMcCallum/Analytics#/activity/overview?_k=wknchj Researchgate: https://www.researchgate.net/profile/Malcolm_Mccallum/reputation?ev=prf_rep_tab <https://www.researchgate.net/profile/Malcolm_Mccallum/reputation?ev=prf_rep_tab> Ratemyprofessor: http://www.ratemyprofessors.com/ShowRatings.jsp?tid=706874 *Confidentiality Notice:* This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. “*Nothing is more priceless and worthy of preservation than the rich array of animal life with which our country has been blessed. It is a many-faceted treasure, of value to scholars, scientists, and nature lovers alike, and it forms a vital part of the heritage we all share as Americans.* ” *-President Richard Nixon upon signing the Endangered Species Act of 1973 into law.* "*Peer pressure is designed to contain anyone with a sense of drive*" -* Allan Nation* *1880's: *"*There's lots of good fish in the sea*" W.S. Gilbert *1990's:* Many fish stocks depleted due to overfishing, habitat loss,and pollution. 2000: Marine reserves, ecosystem restoration, and pollution reduction *MAY* help restore populations. 2022: "Soylent Green is People!" Charleton Heston as Detective Thorn 2022: "People were always awful, but their was a world once, and it was beautiful.' Edward G. Robinson as Sol Roth. The Seven Blunders of the World (Mohandas Gandhi) Wealth w/o work Pleasure w/o conscience Knowledge w/o character Commerce w/o morality Science w/o humanity Worship w/o sacrifice Politics w/o principle
